Applegate has credited her baby's dad, a founding member of 90s alternative rock band Porno for Pyros, with helping keep her spirits high during her cancer battle.

"I have a small but mighty support system and Martyn has really been an incredible part of my life," Applegate previously told Us. "Without him, I don't know if I could've gone through any of it. He came around at a time when there was a lot of loss in my life on many levels, so he's been a really incredible help."